/*
 *  Copyright 2012 Iurii Dunko, Iana Potochniak.
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 * 
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *  under the License.
 */
package org.opu.yyminijava.codegeneration;

import org.simpleframework.xml.Element;
import org.simpleframework.xml.Root;

/**
 *
 * @author Iurii Dunko
 * @author Iana Potochniak
 */
@Root
public class Instruction extends Printable{

    @Element
    private ICode code;
    @Element(required=false)
    private Object arg;

    /**@deprecated this constructor must be used only for serialization */
    public Instruction(){
    }
    
    public Instruction(ICode operationCode, Object argument) {
        this.code = operationCode;
        this.arg = argument;
    }

    public Object getArgument() {
        return arg;
    }

    public ICode getOperationCode() {
        return code;
    }

    public void setArg(Object arg) {
        this.arg = arg;
    }

    /**
     * @deprecated this method must be used only for serialization
     */
    public void setCode(ICode code) {
        this.code = code;
    }

    @Override
    public void print(String space) {
        out.println(space + this);
    }

    @Override
    public String toString() {
        return "[" + code + "]" + (arg != null ? " (" + arg + ")" : "");
    }
}
